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Issue 813813003: Revert of Remove obsolete V8_INFINITY macro. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 6 years ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include <limits>
6
7 #include "src/v8.h" 5 #include "src/v8.h"
8 6
9 #include "src/arm/lithium-codegen-arm.h" 7 #include "src/arm/lithium-codegen-arm.h"
10 #include "src/arm/lithium-gap-resolver-arm.h" 8 #include "src/arm/lithium-gap-resolver-arm.h"
11 #include "src/base/bits.h" 9 #include "src/base/bits.h"
12 #include "src/code-factory.h" 10 #include "src/code-factory.h"
13 #include "src/code-stubs.h" 11 #include "src/code-stubs.h"
14 #include "src/hydrogen-osr.h" 12 #include "src/hydrogen-osr.h"
15 #include "src/ic/ic.h" 13 #include "src/ic/ic.h"
16 #include "src/ic/stub-cache.h" 14 #include "src/ic/stub-cache.h"
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3875 3873
3876 void LCodeGen::DoMathPowHalf(LMathPowHalf* instr) { 3874 void LCodeGen::DoMathPowHalf(LMathPowHalf* instr) {
3877 DwVfpRegister input = ToDoubleRegister(instr->value()); 3875 DwVfpRegister input = ToDoubleRegister(instr->value());
3878 DwVfpRegister result = ToDoubleRegister(instr->result()); 3876 DwVfpRegister result = ToDoubleRegister(instr->result());
3879 DwVfpRegister temp = double_scratch0(); 3877 DwVfpRegister temp = double_scratch0();
3880 3878
3881 // Note that according to ECMA-262 15.8.2.13: 3879 // Note that according to ECMA-262 15.8.2.13:
3882 // Math.pow(-Infinity, 0.5) == Infinity 3880 // Math.pow(-Infinity, 0.5) == Infinity
3883 // Math.sqrt(-Infinity) == NaN 3881 // Math.sqrt(-Infinity) == NaN
3884 Label done; 3882 Label done;
3885 __ vmov(temp, -std::numeric_limits<double>::infinity(), scratch0()); 3883 __ vmov(temp, -V8_INFINITY, scratch0());
3886 __ VFPCompareAndSetFlags(input, temp); 3884 __ VFPCompareAndSetFlags(input, temp);
3887 __ vneg(result, temp, eq); 3885 __ vneg(result, temp, eq);
3888 __ b(&done, eq); 3886 __ b(&done, eq);
3889 3887
3890 // Add +0 to convert -0 to +0. 3888 // Add +0 to convert -0 to +0.
3891 __ vadd(result, input, kDoubleRegZero); 3889 __ vadd(result, input, kDoubleRegZero);
3892 __ vsqrt(result, result); 3890 __ vsqrt(result, result);
3893 __ bind(&done); 3891 __ bind(&done);
3894 } 3892 }
3895 3893
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5950 __ Push(scope_info); 5948 __ Push(scope_info);
5951 __ push(ToRegister(instr->function())); 5949 __ push(ToRegister(instr->function()));
5952 CallRuntime(Runtime::kPushBlockContext, 2, instr); 5950 CallRuntime(Runtime::kPushBlockContext, 2, instr);
5953 RecordSafepoint(Safepoint::kNoLazyDeopt); 5951 RecordSafepoint(Safepoint::kNoLazyDeopt);
5954 } 5952 }
5955 5953
5956 5954
5957 #undef __ 5955 #undef __
5958 5956
5959 } } // namespace v8::internal 5957 } } // namespace v8::internal
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